      rate outside their predicted range?"
                :short-answer "When looking at all 13 hospitals at once, we expect at least one hospital’s survival rate to be
       outside its predicted range about half the time."
-               :glossary     [:survival-rate]
+               :glossary     [:survival-rate :predicted-range]
                :body
                              [:div
                               [:p "If we were looking at only one hospital, we’d expect its survival rate to fall outside its predicted range

               :body
                             [:div
                              [:p "The data come from the National Congenital Heart Disease Audit ("
                               [:a (core/href "http://www.ucl.ac.uk/nicor/audits/congenital") "NCHDA"] ") which collects
       national data for the UK National Heart Disease Audits. All hospitals in the UK and Ireland performing heart
       surgery in children have to submit their data in a standard format to NCHDA. All hospitals are independently
       audited each year as part of a data validation process (to check the quality of the data submitted) to ensure
       that the data are of high quality."]

               :short-answer "There are four possible reasons for being outside the predicted range: inaccurate data, a formula
      that for some reason doesn’t work well for that hospital, just by chance (1 time in 20), or the chances of
      survival at that hospital are different to what is predicted. "
               :glossary     [:survival-rate :predicted-range]
               :body
                             [:div

